2240665 has 8 divisors (see below), whose sum is σ = 3072960. Its totient is φ = 1536432.

The previous prime is 2240663. The next prime is 2240669. The reversal of 2240665 is 5660422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2240665 - 2¹ = 2240663 is a prime.

2240665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2240663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31975 + ... + 32044.

It is an arithmetic number, because the mean of its divisors is an integer number (384120).

2^2240665 is an apocalyptic number.

It is an amenable number.

2240665 is a deficient number, since it is larger than the sum of its proper divisors (832295).

2240665 is an equidigital number, since it uses as much as digits as its factorization.

2240665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64031.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2240665 is about 1496.8850991309. The cubic root of 2240665 is about 130.8555990973.

The spelling of 2240665 in words is "two million, two hundred forty thousand, six hundred sixty-five".